320368605 has 16 divisors (see below), whose sum is σ = 512841024. Its totient is φ = 170779520.

The previous prime is 320368589. The next prime is 320368649. The reversal of 320368605 is 506863023.

It is not a de Polignac number, because 320368605 - 2⁴ = 320368589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37810 + ... + 45500.

It is an arithmetic number, because the mean of its divisors is an integer number (32052564).

Almost surely, 2^320368605 is an apocalyptic number.

It is an amenable number.

320368605 is a deficient number, since it is larger than the sum of its proper divisors (192472419).

320368605 is a wasteful number, since it uses less digits than its factorization.

320368605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 320368605 is about 17898.8436777352. The cubic root of 320368605 is about 684.2529052641.

The spelling of 320368605 in words is "three hundred twenty million, three hundred sixty-eight thousand, six hundred five".